Hydraulic oil-delivery system



Jim. 31, 1928.

F. e. FARR HYDRAULIC OIL DELIVERY SYSTBI Filed, May 22, 1922 naw/whom .51 JcrZc/f Geihrr Patented Jan. 31, 1928.

UNITED, STATES FIBEDEBICK G. IABB, NEW YORK, N. Y.

mnauuc OIL-DELIVERY stem Application :lled lay 2a,

The invention relates to hydraulic oil storage and delivery systems and more particularly to systems designed for use in connection with oil burning furnaces for the 6 supplying offuel to the same. With such systems it is usual to arrange the storage tank outside of the building and enerally buried in the ground, while the 011 is fed from, said tank by .water displacement 10 through a conduit leading to the burner. The control of the feed is throu h a valve for the displacement liquid and t is in turn is usually controlled by electro-magnetio means thermostatically or otherwise controlled. Therefore, whenever the valve is opened, oil will be displaced from the storage tank and fed through the delivery conuit.

It sometimes happens that an oil delivery 10 pipe may splrlilpg a leak and in such event there is not to revent the continuous delivery of oil t roug the leak, flooding the basement, with danger of ex losion. To guard against such a result I ave devised 26 a system where the oil delivery conduit is completely encased in the water supply conduit. This not only affords protection for the oil'conduit, but also in case of accident by which the conduits are broken, the water so pressure would be released so that no oil could be delivered.

My invention also comprises other features of improvement as more fully hereinafter set forth.

85 In the drawings:

The figure illustrates my improved system diagrammatically in vertical section.

A is the wall of the building which encloses the basement B, and C is the storage 40 tank which is outside of the building and buried in the ground. D is the filler for the.

storage tank, also olitside the-building, and

E is a tell-tale or indicator for showing when the tank is completely filled, these 48 arts being similar in construction to devices eretofore used.

The delivery conduit F for the oil to the burner is preferably connected to the filler conduit D and extends through the wall A 50 into the basement to the burner. Surround- .ing this delivery conduit F is a water con- 1e22 e uai No. 588,914. 7 duit G," which preferably extends the full length thereof and which is connected at one end to the downwardly extending water conduit -H leading to the storage tank. This water conduit H is also connected to the water supply I controlled by a valve J which, if desired, may be electrically controlled as indicated at K. The arran ement is such that the water which is a mitted through the valve J will pass between themner oil conduit F and the surrounding water conduit G through the water conduit H and thence downward into the tank C to efi'ect the displacement of the oil. The oil wlll then'pass outward through the conduit F to the burner, but in case of any leakage in the oil conduit F, the oil escapin W111 still be retained by the water conduit It is also evident that an accident which might break the conduits and G would, by releasing the water pressure, prevent the feeding of any oil outwardly through the oil conduit F to the burner converted at extreme left end of oil feed pipe F, and'thus avoid fire hazards.

To simplify the installationthe watercon duit H is preferably aligned with the oil filler conduit D and is connected thereto by a fitting L having a partition for separating the water in pipe G-H fromthe oil in pipe D through which the oil delivery conduit F passes. This completes the water enclosure of the oil delivery conduit F to the point of connection with the oil supply tank C. The conduit F preferably extends upward beyond the fitting L in the oil filler D to a point above the hydrostatic head of the water, so that it will be impossible for water tobe forced in the oil line.

While the enclosing water conduit GH will prevent escape of oil from the delivery conduit F, even where'the latter is leaking,

it is desirable to detect the presence of 011 which may have leaked into the water conduit. This is accomplished by a riser water pipe M within the basement and having a transparent observation chamber N at the top thereof into which an escaping oil will i be, forced by the water isplacement. The drain through which the water is displaced when the tank 0 is being filled is arranged within the basement and rises to a point system, the combination with an external corresponding to the normal hydrostatic head of water, as indicated at O, and is then return-bent as indicated at P to extend to 6 the sewer to waste the .water from tank G when the latter is being filled with oil. The user M is preferably arranged adjacent to this connection and between'tank C and pipe OP so that any leaking oil will rise mto the transparent chamber instead of passing overinto the sewer.

It is now seen that the oil feed pipe F to a burner is entirely concealed in the water pipe G and this makes for safety. The plug partition in, the pipe fitting L diverts the oil, while fillin into the-tank C, and also directs water In pipe H to G for wasting through wwte pipe O P and for carryin oil up into sight chamber N.

1 What I c aim as my invention is:

1. -In a hydraulic oil storage and deliver system, the combination with a storage and an oil filler conduit therefor, of a water dlsplacement conduit, a fitt' mechanically connecting said conduits and aving a port on separating the two conduits, and an o l delivery conduit enclosed within said displacement water conduit and passing through the separating portion of said fitting into communication with said oil filler conduit.

2. In a hydraulic oil storage and delivery system, the combination with a storage tank, of an oil filler conduit therefor having a vertical portion, a conduit for displacement water having a vertical portion aligned with the vertical portion of said filler conduit, mechanically connected thereto, communieating with a laterally extending porti se arating means between the 0' er and water conduits, and an oil deli conduit housed within the laterally-exte mg portion with said displacement water condu t, communicating with said oil filler conduit and extending upward therein to a point above the hydrostatic head of the disrs h'm a 11 m a 'c 0' storage an 'very system, the combination with a storage tank, of an oil filler conduit connected thereto, a conduit for the displacement water having a portion aligned with said oil filler conduit, a fitting for said oil filler and dis placement water conduits haviuwltition separatlngflle two conduits, a y-extonding conduit tor the displacement water connecting with the water compartment of said fimand an oil delivery conduit housed y said laterally-eaten congtnl'it for displacementinwatg, said oil very uit t o sai partition and upwu-d g siid filli conduit to a point above the hydrostatic head of the diflacement water. Inahydraulicoildaor'ageanddelivery oil storage tank, of regulated means for feedin 'splacement water located within a buil in", a water conduit extending from said reglflated feeding means through the wall of the building and to said external tank, an oil delivery conduit housed within said water conduit, a drain connection for said water conduit extending to a point above the normal hydrostatic head and through which the water is displaced upon the filling of the tank with oil, and a riser from said water conduit in advance of said drain connection having a transparent portion above the normal hydrostatic head of the water in which the presence of oil in said conduit will be detected.

5. In a hydraulic oil storage and delivery the combination with a storage tank, of an oil delivery conduit and means extending it from said tank, a water conduit also connected to said tank and arranged to surround a portion of said oil delivery conduit, means for supplying displacement water to said water conduit, a riser extending from said water conduit and arranged to collect therein any oil leaking from the oil delivery conduit .into the displacement water conduit, and means for indicating the presence of the oil collected in said riser.

6. In a hydraulic oil storage and delivery system, the combination with a storage tank, of an oil delivery conduit and means extending it from said tank, a water conduit also connected to said tank and arranged to surround a portion of said oil delivery conduit, means for supplying displacement water to said water conduit, a water waste pipe connected wish sifhleed water chonduit 8.1g: comd prising" a a pi teupper nten of which is above'th normal water levelZ and means for indicating the presence 0 oil in the portion of said water conduit surrounding said oil delivery conduit comprising a riser carrying a sight device and connected to the water conduit between the tank and'waste pipe. v

7. In a hydraulic oil storage and delivery system, the combination with a storage tank, of an oil delivery conduit and means extending it from said tank, a water conduit also connected to said tank, a water jacket surrounding said oil deliver conduit and connected to said water con uit, means for supplying displacement water to said water conduit, a riser from, said water conduit extending above the normal hydro static head of the water and a' transparent chamber in ,said riser for collecting any oil in said water conduit.

- 8. An oil storage system comprising a tank, a main pipe leading to the lower portion of said tank, a partition plug in the main pi dividing it into an upper oil fill pipe an a lower water pipe, a laterally extending oil filling pipe connecting with the ing through the wall of the main pipe; and oil filling pipe above the plug and, leading to a water p1pe eucasing the oil delivery pipe the upper portion of the tank; an oil debeginning at and connecting with the main l0 livery. pipe concealed within the upper oil pipe below the plug.-

5 fill pipe beginning at a point above the tank, In testimony whereof I aflix my signaextending down through the plug, past the ture. laterally extending oil fill pipe, and project- FREDERICK G. FARR. 

